PracHub
QuestionsExperienceLearningGuidesInterview PrepGreen Card
PracHub

Master your tech interviews with 10,000+ real questions from top companies.

Product

  • Questions
  • Learning Tracks
  • Interview Guides
  • Resources
  • Green Card Tracker
  • Premium
  • Practice with AI agents
  • For Universities

Browse

  • By Company
  • By Role
  • By Category
  • Topic Hubs
  • Interview Experiences
  • SQL Questions
  • AI Coding Questions
  • Compare Platforms
  • Discord Community

Support

  • support@prachub.com
  • (916) 541-4762

Legal

  • Privacy Policy
  • Terms of Service
  • About Us

© 2026 PracHub. All rights reserved.

Tech Interview Questions

Practice the exact questions companies are asking right now.

Questions
12.2k
Companies
569
Updated
10.14.2026
12.2k Questions 569 Companies10.14.2026
PLTCHK testimonial
PLTCHK

"I got asked a hardcore MCM DP question and I saw it on PracHub as well. Solved that question in 5 minutes. Without PracHub I doubt I could solve it in 5 hours. Though somehow didn't get hired, perhaps I guess I solved it too fast? /s"

_The_TaNk_ testimonial
_The_TaNk_

"Believe me i'm a student here jn US. Recently interviewed for MSFT. They asked me exact question from PracHub. I saw it the night before and ignored it cause why waste time on random sites. I legit wanna go back and redo this whole thing if I had chance. Not saying will work for everyone but there is certainly some merit to that website. And i'm gonna use it in future prep from now on like lc tagged"

Chris testimonial
ChrisSenior SWE, LinkedIn

"10 years of experience but never worked at a top company. PracHub's senior-level questions helped me break into FAANG at 35. Age is just a number."

sleepy33 testimonial
sleepy33

"I was skeptical about the 'real questions' claim, so I put it to the test. I searched for the exact question I got grilled on at my last Meta onsite... and it was right there. Word for word."

Jake testimonial
JakeSenior ML Engineer, Lyft

"Got a Google recruiter call on Monday, interview on Friday. Crammed PracHub for 4 days. Passed every round. This platform is a miracle worker."

nuggetlord testimonial
nuggetlord

"I've used LC, Glassdoor, and random Discords. Nothing comes close to the accuracy here. The questions are actually current — that's what got me. Felt like I had a cheat sheet during the interview."

Carlos testimonial
CarlosFull Stack, Shopify

"The solution quality is insane. It covers approach, edge cases, time complexity, follow-ups. Nothing else comes close."

boba.tea.vibes testimonial
boba.tea.vibes

"Legit the only resource you need. TC went from 180k -> 350k. Just memorize the top 50 for your target company and you're golden."

Andy testimonial
AndySWE-II, Google

"PracHub Premium for one month cost me the price of two coffees a week. It landed me a $280K+ starting offer."

couchpotato99 testimonial
couchpotato99

"Literally just signed a $600k offer. I only had 2 weeks to prep, so I focused entirely on the company-tagged lists here. If you're targeting L5+, don't overthink it."

Shruti testimonial
ShrutiData Engineer, Salesforce

"Coaches and bootcamp prep courses cost around $200-300 but PracHub Premium is actually less than a Netflix subscription. And it landed me a $178K offer."

midnightramen testimonial
midnightramen

"I honestly don't know how you guys gather so many real interview questions. It's almost scary. I walked into my Amazon loop and recognized 3 out of 4 problems from your database."

Bianca testimonial
BiancaFrontend Eng, Figma

"Discovered PracHub 10 days before my interview. By day 5, I stopped being nervous. By interview day, I was actually excited to show what I knew."

tambrahm007 testimonial
tambrahm007

"I recently cleared Uber interviews (strong hire in the design round) and all the questions were present in prachub."

toa testimonial
toa

"The search is what sold me. I typed in a really niche DP problem I got asked last year and it actually came up, full breakdown and everything. These guys are clearly updating it constantly."

PLTCHK testimonial
PLTCHK

"I got asked a hardcore MCM DP question and I saw it on PracHub as well. Solved that question in 5 minutes. Without PracHub I doubt I could solve it in 5 hours. Though somehow didn't get hired, perhaps I guess I solved it too fast? /s"

_The_TaNk_ testimonial
_The_TaNk_

"Believe me i'm a student here jn US. Recently interviewed for MSFT. They asked me exact question from PracHub. I saw it the night before and ignored it cause why waste time on random sites. I legit wanna go back and redo this whole thing if I had chance. Not saying will work for everyone but there is certainly some merit to that website. And i'm gonna use it in future prep from now on like lc tagged"

Chris testimonial
ChrisSenior SWE, LinkedIn

"10 years of experience but never worked at a top company. PracHub's senior-level questions helped me break into FAANG at 35. Age is just a number."

sleepy33 testimonial
sleepy33

"I was skeptical about the 'real questions' claim, so I put it to the test. I searched for the exact question I got grilled on at my last Meta onsite... and it was right there. Word for word."

Jake testimonial
JakeSenior ML Engineer, Lyft

"Got a Google recruiter call on Monday, interview on Friday. Crammed PracHub for 4 days. Passed every round. This platform is a miracle worker."

nuggetlord testimonial
nuggetlord

"I've used LC, Glassdoor, and random Discords. Nothing comes close to the accuracy here. The questions are actually current — that's what got me. Felt like I had a cheat sheet during the interview."

Carlos testimonial
CarlosFull Stack, Shopify

"The solution quality is insane. It covers approach, edge cases, time complexity, follow-ups. Nothing else comes close."

boba.tea.vibes testimonial
boba.tea.vibes

"Legit the only resource you need. TC went from 180k -> 350k. Just memorize the top 50 for your target company and you're golden."

Andy testimonial
AndySWE-II, Google

"PracHub Premium for one month cost me the price of two coffees a week. It landed me a $280K+ starting offer."

couchpotato99 testimonial
couchpotato99

"Literally just signed a $600k offer. I only had 2 weeks to prep, so I focused entirely on the company-tagged lists here. If you're targeting L5+, don't overthink it."

Shruti testimonial
ShrutiData Engineer, Salesforce

"Coaches and bootcamp prep courses cost around $200-300 but PracHub Premium is actually less than a Netflix subscription. And it landed me a $178K offer."

midnightramen testimonial
midnightramen

"I honestly don't know how you guys gather so many real interview questions. It's almost scary. I walked into my Amazon loop and recognized 3 out of 4 problems from your database."

Bianca testimonial
BiancaFrontend Eng, Figma

"Discovered PracHub 10 days before my interview. By day 5, I stopped being nervous. By interview day, I was actually excited to show what I knew."

tambrahm007 testimonial
tambrahm007

"I recently cleared Uber interviews (strong hire in the design round) and all the questions were present in prachub."

toa testimonial
toa

"The search is what sold me. I typed in a really niche DP problem I got asked last year and it actually came up, full breakdown and everything. These guys are clearly updating it constantly."

Showing 20 results
Squarepoint logo
Squarepoint
Medium
Data Scientist

Implement drawdown, single-trade profit, coin change

Implement and analyze the following three problems: 1) Maximum drawdown of cumulative PnL: "What is the maximum drawdown of a cumulative PnL (profit a...

Coding & AlgorithmsArrays & StringsDynamic Programming
10
0
75 people solved
Sep 6, 2025
DoorDash logo
DoorDash
Medium
Software Engineer

Compute nearest dashmart distances for queries

You are given an m x n grid where each cell is one of: -1 for a wall (impassable), 0 for a dashmart (a store), and INF = 2^31 - 1 for an empty room. M...

Coding & AlgorithmsGrids & MatricesGraphs
14
0
129 people solved
Sep 6, 2025
Anthropic logo
Anthropic
Medium
Machine Learning Engineer Locked

Implement a web crawler using a provided API

This question evaluates understanding of web crawling mechanics, URL/hostname filtering, graph traversal concepts, and concurrent fetching, assessing ...

Coding & AlgorithmsGraphs
39
0
365 people solved
Feb 11, 2026
Google logo
Google
Medium
Data Scientist

Evaluate Optimal Jogging Routes Feature with A/B Testing

Evaluate an Optimal Jogging Routes Feature with A/B Testing Google Maps is considering a feature that recommends optimal jogging routes, such as safe,...

Analytics & ExperimentationExperiment Design (A/B Testing)Metrics & KPIs
18
0
111 people solved
Jul 12, 2025
Bloomberg logo
Bloomberg
Medium
Software Engineer Locked

Design a fair event registration queue API

This question evaluates a candidate's ability to design an in-memory, FIFO event registration service using object-oriented design, testing knowledge ...

System DesignData Structure Design
12
0
215 people solved
Dec 15, 2025
Google logo
Google
Hard
Data Scientist

Define and apply Gmail user segments

Question Gmail wants to create actionable user segments to drive both product improvements and marketing/lifecycle outcomes. Propose a segmentation sc...

Analytics & ExperimentationSegmentation & Cohort AnalysisExperiment Design (A/B Testing)
8
0
127 people solved
Oct 13, 2025
Apple logo
Apple
Medium
Accessories Software QA EngineerNew Grad

Improve QA Benchmarks, Regression Tests, and HPC Resource Use

A software QA project includes both performance benchmarks and regression tests. Its benchmark jobs consume substantial resources on a shared high-per...

Software Engineering FundamentalsTesting & QualityConcurrency
1
0
18 people solved
Mar 16, 2026
Motive logo
Motive
Medium
Software Engineer

Implement Union-Find and track components

Implement a Disjoint Set Union (Union-Find) data structure with union by rank and path compression. Design the API to support union(a, b), connected(a...

Coding & Algorithms
8
0
68 people solved
Sep 6, 2025
Harvey logo
Harvey
Medium
Backend Engineer

Resolve conflict across teams

Describe a time when you had to coordinate between two teams that were in conflict or seriously misaligned. What caused the disagreement, how did you ...

Behavioral & LeadershipConflict & CollaborationCommunication & Stakeholders
17
0
142 people solved
Feb 18, 2026
Snowflake logo
Snowflake
Hard
Software Engineer Locked

Design an ACL authorization checking service

This question evaluates system design and security architecture skills, focusing on centralized authorization/ACL models, API and data modeling, cachi...

System DesignAuthentication & Authorization
44
0
307 people solved
Jan 6, 2026
Anthropic logo
Anthropic
Hard
Software EngineerSenior+

Batch-Apply Pillow Image Transforms, Then Parallelize: Processes vs Threads

You are given a set of cat images and must apply a series of image transforms to each one. The interviewer fixes the image library, Pillow, and the st...

Software Engineering FundamentalsConcurrencyProgramming Languages
0
0
2 people solved
Jul 26, 2026
Meta logo
Meta
Medium
Software Engineer

Solve tree view and parentheses cleanup

Solve the following two algorithm problems. 1. Right-side view of a binary tree Given the root of a binary tree, return the values of the nodes that w...

Coding & Algorithms
7
0
59 people solved
Feb 1, 2026
Nordstrom logo
Nordstrom
Hard
Software Engineer

Design and evolve a reservation system

Design and evolve a reservation system System Design: Online Reservation System You are designing a backend platform to book time-based slots for serv...

System DesignSystem Design FundamentalsTransactions & Isolation
11
0
117 people solved
Jul 17, 2025
Amazon logo
Amazon
Medium
Software Engineer

Determine string segmentability with dictionary

Determine string segmentability with dictionary Given a string s and a dictionary of words, determine whether s can be segmented into a sequence of di...

Coding & Algorithms
7
0
58 people solved
Aug 8, 2025
Jump Trading logo
Jump Trading
Medium
Machine Learning Engineer

Solve stock-pattern trading and substring elimination

Part A — Stock trading by pattern signals: - Input: an integer array prices (length n) of daily stock prices; an array buyPattern and an array sellPat...

Coding & AlgorithmsArrays & StringsStacks & Queues
8
0
160 people solved
Aug 1, 2025
Amazon logo
Amazon
Medium
Machine Learning Engineer

Design an LLM Chatbot: Training Data, Reward Design and Deployment Considerations

Design a chatbot built on a large language model. Walk through the whole lifecycle, and explain three areas in depth: how you would build the training...

ML System DesignFine-Tuning & Alignment TechniquesReinforcement Learning
1
0
10 people solved
Jan 3, 2026
Apple logo
Apple
Medium
Machine Learning Engineer Locked

Explain dataset size, generalization, and U-Net skips

This question evaluates understanding of core machine learning and computer vision competencies — including dataset size trade-offs, generalization an...

Machine LearningML FundamentalsComputer Vision
21
0
151 people solved
Mar 1, 2026
Tesla logo
Tesla
Medium
Backend EngineerSenior+

Describe conflict and proudest work

You may be asked behavioral questions such as: - Tell me about a time you had a conflict with a teammate or partner team. What happened, how did you h...

Behavioral & LeadershipConflict & CollaborationProject Deep Dive
7
0
98 people solved
Jan 25, 2026
Pinterest logo
Pinterest
Medium
Software Engineer Locked

Solve Two Grid Search Problems

This question evaluates proficiency in graph traversal on grids, specifically competencies in identifying connected components and modeling propagatio...

Coding & AlgorithmsGrids & Matrices
20
0
133 people solved
Jan 28, 2026
OpenAI logo
OpenAI
Hard
Software Engineer Locked

Design a distributed crossword solving service

This question evaluates distributed systems and large-scale backend architecture skills, including task decomposition, scheduling, dynamic load balanc...

System DesignJob Scheduling & WorkflowsFault Tolerance & Failover
26
0
258 people solved
Oct 17, 2025
Previous1...368369370...610Next
Popular Categories
SQLBlind 75
Daily Quest

Sign in to earn XP for every problem you solve.

Choose your next challenge

All learning

Blind 75

75 free coding problems to build your foundations, with hints, explanations, and a progress checklist.

Arrays · Graphs · Dynamic programming

Explore Blind 75

ML System Design

Work through the decisions behind machine learning systems, from data to serving.

Data · Models · Evaluation

Explore the course

System Design Interview

Practice reasoning about architecture, scale, and the tradeoffs that shape a system.

Architecture · Scale · Tradeoffs

Explore the course

Explore by company

All companies
  • Meta
  • Google
  • Amazon
  • Apple
  • Microsoft
  • Netflix
  • Capital One
  • TikTok
  • DoorDash
  • Uber
  • Coinbase
  • Airbnb
  • LinkedIn
  • Salesforce
  • Snapchat
  • Spotify
  • PayPal
  • Lyft
  • Pinterest
  • Anthropic
  • OpenAI
  • Databricks
  • Rippling
  • Jane Street
  • Stripe

Explore by role

  • Data Scientist
  • Software Engineer
  • Machine Learning Engineer
  • Product Manager
  • Data Engineer
  • Data Analyst
  • Frontend Engineer
  • Backend Engineer
  • Site Reliability Engineer
  • Technical Program Manager

Explore by category

  • Blind 75
  • Coding & Algorithms
  • System Design
  • Machine Learning
  • ML System Design
  • SQL & Python
  • Analytics & Experimentation
  • Behavioral & Leadership
  • Statistics & Math
  • Product / Decision Making
  • Product Design & Strategy
  • SWE Fundamentals

Popular interview guides

  • Meta SWE
  • Meta DS
  • Meta PM
  • Google SWE
  • Google DS
  • Google MLE
  • Amazon SWE
  • Amazon DS
  • Amazon DE
  • Apple SWE
  • Apple MLE
  • Microsoft SWE
  • Microsoft DS
  • TikTok SWE
  • TikTok DS
  • Uber SWE
  • Uber DS
  • DoorDash SWE
  • DoorDash DS
  • Airbnb SWE
  • Airbnb DS
  • LinkedIn SWE
  • LinkedIn DS
  • Netflix SWE
  • Coinbase SWE
  • Capital One DS
  • OpenAI SWE
  • Anthropic SWE

Popular question categories

  • Blind 75
  • Meta Coding
  • Google System Design
  • Amazon Coding
  • Meta Analytics
  • Google ML
  • Amazon System Design
  • Capital One SQL
  • TikTok ML
  • Meta SQL
  • Uber Analytics
  • DoorDash Coding
  • Google Coding
  • Netflix System Design
  • Airbnb Analytics
  • LinkedIn SQL